Brine is the common name of

Options

A. Solid ammonium chloride
B. Silicon dioxide
C. Calcium phosphate
D. Sodium chloride solution

Answer

**Step-by-Step Solution:**

1. **Understanding the Term "Brine":**
- Brine is commonly referred to as a solution that contains a high concentration of salt.

2. **Identifying the Main Component:**
- The primary component of brine is Sodium Chloride (NaCl), which is commonly known as table salt.

3. **Formulating the Brine Solution:**
- When Sodium Chloride is dissolved in water (H2O), it forms a solution. This can be represented chemically as:
\[ \text{NaCl (s)} + \text{H}_2\text{O (l)} \rightarrow \text{Brine (aq)} \]
- Here, "aq" denotes that the solution is aqueous, meaning it is dissolved in water.

4. **Uses of Brine:**
- Brine is often used as a preservative for food items due to its ability to inhibit the growth of bacteria.

5. **Comparison with Seawater:**
- It is interesting to note that seawater has a salinity of about 3.5%, which is similar to a brine solution.

**Final Answer:**
Brine is the common name for a solution of Sodium Chloride (NaCl) in water.

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